CN105700828B - A kind of write-in of data, read method and device - Google Patents
A kind of write-in of data, read method and device Download PDFInfo
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- CN105700828B CN105700828B CN201610028102.3A CN201610028102A CN105700828B CN 105700828 B CN105700828 B CN 105700828B CN 201610028102 A CN201610028102 A CN 201610028102A CN 105700828 B CN105700828 B CN 105700828B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
- G06F3/0631—Configuration or reconfiguration of storage systems by allocating resources to storage systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0674—Disk device
- G06F3/0676—Magnetic disk device
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Abstract
The invention discloses a kind of write-in of data, read method and device, which may include: to obtain new TS flow data；Select next default storage region of previous writing area as current writing region from the identical default storage region of multiple memory spaces according to sequence；TS flow data is written to current writing region, is originally written into the time as current writing region at the time of write-in will be started；It is full to judge whether current writing region is write by TS flow data；When current writing region writes full by TS flow data, using end write time at the time of writing full as current writing region, and using next default storage region of the sequence after current writing region as target writing area, and subsequent TS flow data is written in target writing area, the time is originally written into as target writing area at the time of write-in will be started.Technical solution of the present invention will not generate disk fragments, and avoiding disk access becomes slowly even to collapse.
Description
Technical field
The present invention relates to technical field of data processing, in particular to a kind of data write-in, read method and device.
Background technique
It, can be with when due to using transport stream (Transport Stream, hereinafter referred to as TS stream) transmission audio, video data
Realize and played in transmission, and have no effect on the broadcasting of subsequent audio-video in the case where intermediate packet loss, thus TS flow gradually at
The major way that audio-video is transmitted for media such as TV, networks.For this purpose, the recording technology of TS stream also becomes more to weigh
It wants.
Currently, TS stream method for recording in the related technology freely deposits corresponding video file when recording TS flow data
It is placed on disk.As disk uses the passage of time, due to recording the needs or other reasons in space, user can constantly be carried out
The operations such as newly-increased file, deletion file, simultaneously because the size of each video file is different, so will cause many disks
Fragment, eventually leading to disk access becomes extremely slowly even to collapse.
Summary of the invention
A kind of method for writing data, read method and device are provided in the embodiment of the present invention, to avoid disk fragments
Occur, prevents disk access from becoming slowly even to collapse.
In order to solve the above-mentioned technical problem, the embodiment of the invention discloses following technical solutions:
A kind of method for writing data, which comprises
Obtain new TS flow data；
Select from multiple default storage regions next default storage region of previous writing area as working as according to sequence
The memory space of preceding writing area, the multiple default storage region is all the same；
The TS flow data is written to the current writing region, as described presently written at the time of starting to be written
Region is originally written into the time；
It is full to judge whether the current writing region is write by the TS flow data；
When the current writing region writes full by the TS flow data, using at the time of writing full as the presently written area
The end write time in domain, and next default storage region of the sequence after the current writing region is write as target
Enter region, and subsequent TS flow data is written in the target writing area, will start to write at the time of write-in as the target
Enter region is originally written into the time.
Preferably, the method also includes:
For any writing area of the TS flow data, any writing area is written since the TS flow data
Start time carries out timing；
Every prefixed time interval, record ends total write-in duration of any writing area described in current time, total write-in
The data volume being written in data volume, current preset time interval.
Preferably, the method also includes:
When the target writing area does not write full by the TS flow data, judge whether the TS flow data breaks
Stream；
When the TS flow data stops, by next default storage of the sequence after the target writing area
Region is as fresh target writing area；
Judge whether the TS flow data restores；
When the TS flow data restores, the TS flow data after recovery is written to the fresh target writing area.
Preferably, the method also includes:
Judge the current writing region whether be in multiple default storage regions sort end default storage region；
It, will be multiple when the current writing region is the default storage region at sequence end in multiple default storage regions
The default storage region of sequence first is as target writing area in default storage region.
A kind of method for reading data, which comprises
Obtain the corresponding temporal information of TS flow data to be visited；Wherein, all TS flow datas are stored in multiple storages
In the identical default storage region in space, the temporal information includes starting read access time and end read access time；
Obtain the TS flow data in each default storage region is originally written into time and end write time；
It is originally written into time and end write time according to the TS flow data in each default storage region, is obtained containing
It states and starts read access time and the default storage region of the one or more for terminating the TS flow data between read access time.
Preferably, the method also includes:
Obtain the write-in duration of each default storage region in one or more of default storage regions, data block offset,
Corresponding relationship between writing data blocks size；
It is originally written into time and end write time according to the corresponding relationship and each default storage region are corresponding,
Obtain the corresponding data block offset of the beginning read access time and the corresponding data block offset of the end read access time；
It reads the corresponding data block of the beginning read access time and deviates data block processed corresponding with the end read access time
TS flow data between offset.
A kind of data transfer apparatus, described device include:
TS flow data acquiring unit, for obtaining new TS flow data；
Current writing region determination unit, for selecting previous writing area from multiple default storage regions according to sequence
Next default storage region as current writing region, the memory space of the multiple default storage region is all the same；
First TS flow data writing unit will start for the TS flow data to be written to the current writing region
The time is originally written into as the current writing region at the time of write-in；
Full judging unit is write, is expired for judging whether the current writing region is write by the TS flow data；
First object writing area determination unit, for when the current writing region writes full by the TS flow data,
Using end write time at the time of writing full as the current writing region, and will sequence be located at the current writing region it
Next default storage region afterwards is written in the target writing area as target writing area, and by subsequent TS flow data,
The time is originally written into as the target writing area at the time of starting write-in.
Preferably, described device further include:
Timing starts unit, for any writing area for the TS flow data, writes since the TS flow data
Enter any writing area start time progress timing；
Recording unit, for every prefixed time interval, record to end always writing for any writing area described in current time
Enter duration, the interior data volume being written of data volume, current preset time interval is always written.
Preferably, described device further include:
Stop judging unit, for judging the TS when the target writing area does not write full by the TS flow data
Whether flow data stops；
Fresh target writing area determination unit, for when the TS flow data stops, sequence to be located at the mesh
Next default storage region after mark writing area is as fresh target writing area；
Restore judging unit, for judging whether the TS flow data restores；
2nd TS flow data writing unit, for when the TS flow data restores, the TS flow data after recovery to be written
To the fresh target writing area.
Preferably, described device further include:
Region decision unit, for judging whether the current writing region is end of sorting in multiple default storage regions
Default storage region；
Second target writing area determination unit, for being to be arranged in multiple default storage regions when the current writing region
When the default storage region at sequence end, be written the default storage region of sequence first in multiple default storage regions as target
Region.
A kind of reading data device, described device include:
Temporal information acquiring unit, for obtaining the corresponding temporal information of TS flow data to be visited；Wherein, all TS
Flow data is stored in the identical default storage region of multiple memory spaces, and the temporal information includes starting read access time and knot
Beam read access time；
Write time acquiring unit is originally written into time and knot for obtain the TS flow data in each default storage region
The beam write time；
Storage region acquiring unit, for being originally written into time and knot according to the TS flow data in each default storage region
The beam write time obtains containing the beginning read access time and one or more for terminating the TS flow data between read access time
A default storage region.
Preferably, described device further include:
Corresponding relationship acquiring unit, for obtaining each default storage region in one or more of default storage regions
Duration is written, data block deviates, the corresponding relationship between writing data blocks size；
Deviate acquiring unit, for according to the corresponding relationship and each default storage region is corresponding be originally written into when
Between and terminate the write time, obtain the corresponding data block of the beginnings read access time and deviate and the end read access time pair
The data block offset answered；
Reading unit, for reading the corresponding data block offset of the beginning read access time and the end read access time pair
The TS flow data between data block processed offset answered.
The technical scheme provided by this disclosed embodiment can include the following benefits:
A kind of method for writing data and device that the embodiment of the present disclosure provides default are deposited to multiple memory spaces are identical
When storing up space write-in TS flow data；It is selected under previous writing area from multiple default storage regions first, in accordance with sequence
One default storage region is as current writing region；And the TS flow data is written to the current writing region, it will start
The time is originally written into as the current writing region at the time of write-in.Further, when the current writing region is by institute
When stating TS flow data and writing full, using end write time at the time of writing full as the current writing region, and sequence is located at
Next default storage region after the current writing region, will be described in the write-in of subsequent TS flow data as target writing area
In target writing area, the time is originally written into as the target writing area at the time of write-in will be started.
When application the embodiment of the present invention scheme when, when TS flow data be written, only when write expire a default memory space
When, just kept away to next default memory space write-in TS flow data so technical solution of the present invention will not generate disk fragments
Having exempted from disk access becomes slowly even to collapse.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without any creative labor, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of method for writing data provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another method for writing data provided in an embodiment of the present invention；
The flow chart of Fig. 3 another method for writing data provided in an embodiment of the present invention；
The flow chart of Fig. 4 another method for writing data provided in an embodiment of the present invention；
A kind of Fig. 5 flow chart of method for reading data provided in an embodiment of the present invention；
The flow chart of Fig. 6 another method for reading data provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of data transfer apparatus provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another data transfer apparatus provided in an embodiment of the present invention；
The structural schematic diagram of Fig. 9 another data transfer apparatus provided in an embodiment of the present invention；
The structural schematic diagram of Figure 10 another data transfer apparatus provided in an embodiment of the present invention；
A kind of Figure 11 structural schematic diagram of reading data device provided in an embodiment of the present invention；
The structural schematic diagram of Figure 12 another reading data device provided in an embodiment of the present invention.
Specific embodiment
A kind of method for writing data, read method and device are provided in the embodiment of the present invention, to avoid disk fragments
Occur, prevents disk access from becoming slowly even to collapse.
Technical solution in embodiment in order to enable those skilled in the art to better understand the present invention, and make of the invention real
The above objects, features, and advantages for applying example can be more obvious and easy to understand, with reference to the accompanying drawing to technical side in the embodiment of the present invention
Case is described in further detail.
As shown in Figure 1, being a kind of flow chart of method for writing data provided in an embodiment of the present invention, this method may include
Following steps:
In step s101, new TS flow data is obtained；
Specifically, in this step, the new TS flow data of acquisition refers to the TS flow data for newly starting to record, for example, newly
Start some radio station recorded or the TS flow data of some program.
In step s 102, next preset of previous writing area is selected to deposit from multiple default storage regions according to sequence
As current writing region, the memory space of the multiple default storage region is all the same in storage area domain；
Specifically, in this step, according to the write sequence of pre-set multiple default storage regions, by write sequence
Sequence be located at previous writing area next default storage region be determined as current writing region.Wherein, it is currently write in determination
When entering region, the history write-in record that can be flowed according to TS searches previous writing area from multiple default storage regions, then presses
Next default storage region of previous writing area is determined as current writing region by the sequence according to write sequence, can also be from multiple
The default storage region that TS stream is not written is searched in default storage region, TS stream then will not be written according to the sequence of write sequence
Default storage region in first default storage region be determined as current writing region etc..In addition, write sequence is adjacent
The memory space of default storage region can be adjacent, can also be non-conterminous.For example, one share 5 memory spaces be ordered as A,
B, the default storage region of C, D, E, pre-set write sequence is followed successively by A, B, C, D, E, and finds previous writing area
To preset storage region B, then using default storage region C as current writing region.For another example, one 4 memory space sequences are shared
For the default storage region of A ', B ', C ', D ', pre-set write sequence is A ', D ', B ', C ', and finds previous write-in
Region is default storage region D ', then regard default storage region B ' as current writing region.Wherein, A, B, C, D, E, A ', B ',
C ', D ' are the title of each default storage region, it is to be understood that aforementioned names are only schematical, and each preset is deposited
The title in storage area domain, which can according to need, to be configured.
In addition, it should be noted that, the memory space of multiple default storage regions is all the same, each default storage region
The size of memory space can be configured according to factors such as video recording duration, video recording size, disk sizes, for example, each preset is deposited
The size of the memory space in storage area domain can be 64MB, 128MB, 256MB, 512MB, 600MB etc..Wherein, each preset is deposited
Storage area domain can be sky, can also be deactivated in advance data and take.
In step s 103, the TS flow data is written to the current writing region, work at the time of write-in will be started
The time is originally written into for the current writing region；
Specifically, in this step, TS flow data acquired in step s101 is written to working as of selecting in step S102
In preceding writing area, and by TS flow data start be written current writing region at the time of be recorded as current writing region initially write
The angle of incidence.Wherein, when each default storage region is empty, TS flow data is gradually written in current writing region；When each
When default storage region is deactivated data and takes, the invalid data in current writing region is gradually covered with TS flow data.
In addition, can set the recording state of current writing region to during current writing region write-in TS stream
Just in recording state, correspondingly, stop recording TS flow data (for example, cutout, TS stream occurs in TS flow data in current writing region
Data have write full current writing region or TS stream and have completed the situations such as recording in current writing region) when, it can be by presently written area
The recording state in domain is set as stopping recording state.In specific setting up procedure, presently written area is marked using specific identifier
The write state in domain, such as stop recording state using 0 label of number just in recording state using 1 label of number.It is understood that
, during other default storage regions are written in TS data, or storage region is preset at other and stops recording TS
When flow data, the recording state of corresponding default storage region also can be set, hereafter this is repeated no more.
In step S104, it is full to judge whether the current writing region is write by the TS flow data；
Specifically, in this step, the size of the statistics available TS flow data currently obtained, when the TS flow data currently obtained
Size when being equal to the memory space of default storage region, it is full to determine that current writing region is write by TS flow data.When each default
When storage region is empty, whether the remaining space that can detect current writing region is zero, is detecting current writing region
When remaining space is zero, it is full to determine that current writing region is write by TS flow data.It is accounted for when each default storage region is deactivated data
Man Shi, whether detectable current writing region has invalid data, and when detecting that there is invalid data in current writing region, determination is worked as
Write by TS flow data full in preceding writing area.
When the current writing region writes full by the TS flow data, in step s105, using at the time of writing full as
The end write time of the current writing region, and next default storage by sequence after the current writing region
Region is written in the target writing area as target writing area, and by subsequent TS flow data, at the time of starting write-in
The time is originally written into as the target writing area.
Specifically, in this step, when judging that current writing region writes full by TS flow data in step S104, by TS
Flow data is recorded as the end write time of current writing region at the time of writing full current writing region, further, according to pre-
The write sequence for the multiple default storage regions being first arranged, the sequence of write sequence is next after current writing region
Storage region is preset as target writing area, and target writing area is written into subsequent TS flow data, TS flow data is started
Target writing area is recorded as at the time of target writing area is written is originally written into the time.Wherein, when each default memory block
When domain is empty, TS flow data is gradually written in target writing area；When each default storage region, which is deactivated data, to be taken,
With the invalid data in TS flow data gradually coverage goal writing area.
Further, it is to be appreciated that TS flow data can be write and meet the eye on every side mark when target writing area writes full by TS flow data
It is recorded as the end write time of target writing area at the time of writing area, and is located at after target writing area to sequence
TS flow data is written in next default storage region.It is understood that TS flow data is when being written any default storage region
Writing mode be all identical, and the beginning write time of default storage region can be all recorded at the time of corresponding and end is write
The angle of incidence hereafter repeats no more this.
TS fluxion is being written to the identical default memory space of multiple memory spaces in this method provided in an embodiment of the present invention
According to when；Next default storage region of previous writing area is selected to make from multiple default storage regions first, in accordance with sequence
For current writing region；And the TS flow data is written to the current writing region, as institute at the time of starting to be written
That states current writing region is originally written into the time.Further, when the current writing region writes full by the TS flow data,
Using end write time at the time of writing full as the current writing region, and will sequence be located at the current writing region it
Subsequent TS flow data is written in the target writing area as target writing area for next default storage region afterwards, will
The time is originally written into as the target writing area at the time of starting write-in.
When application the embodiment of the present invention scheme when, when TS flow data be written, only when write expire a default memory space
When, just kept away to next default memory space write-in TS flow data so technical solution of the present invention will not generate disk fragments
Having exempted from disk access becomes slowly even to collapse.
As shown in Fig. 2, in a kind of specific embodiment of the invention, the method for writing data can also include:
In step s 201, for any writing area of the TS flow data, institute is written since the TS flow data
State any writing area start time progress timing；
In step S202, every prefixed time interval, record ends always writing for any writing area described in current time
Enter duration, the interior data volume being written of data volume, current preset time interval is always written.
Wherein, in specific implementation process of the present invention, the prefixed time interval is configured according to specific needs, example
It such as can be 0.5s, 1s, 2s.
Specifically, in this specific embodiment, it for any writing area of TS flow data, is write since TS flow data
Start timing at the beginning of entering corresponding writing area, every prefixed time interval, record cut-off current time is write accordingly
Enter total write-in duration in region, the interior data volume being written of data volume, current preset time interval is always written, in corresponding write area
When stopping is recorded in domain, the write-in duration of corresponding writing area can be obtained, data block deviates, between writing data blocks size
Corresponding relationship.For example, prefixed time interval is 1s, a length of 100s in the recording of corresponding writing area, then in corresponding relationship
Having recorded 0s, 1s, 2s, 3s ..., 100s corresponds to the data block offset and the writing data blocks size of corresponding every 1s at moment.Before
The corresponding relationship stated is that the accurate access of TS flow data provides convenience.
As shown in figure 3, in a kind of specific embodiment of the invention, the method for writing data can also include:
When the target writing area does not write full by the TS flow data, in step S301, the TS fluxion is judged
According to whether stopping；
When the TS flow data stops, in step s 302, sequence is located at after the target writing area
Next default storage region as fresh target writing area；
In step S303, judge whether the TS flow data restores；
When the TS flow data restores, in step s 304, the TS flow data after recovery is written to the fresh target
Writing area.
Specifically, in this specific embodiment, first determine whether the target writing area in step S105 is flowed by TS
Data are write completely, when judging that target writing area does not write full by TS flow data, further, judge whether TS flow data occurs
Cutout, and when TS flow data stops, next preset of the sequence of write sequence after target writing area is deposited
Storage area domain is as fresh target writing area.Then judge whether TS flow data restores, and the TS flow data after recovery is written newly
Target writing area.In the embodiment, the TS flow data after recovery is written to fresh target writing area, is write using target
The beginning write time of the end write time and fresh target writing area that enter region truly record the cutout time, this is solved
In the prior art due to being directly stored together the TS flow data of cutout front and back, asking for cutout time cannot be truly recorded
Topic.
As shown in figure 4, in a kind of specific embodiment of the invention, the method for writing data can also include:
In step S401, judge whether the current writing region is the pre- of end of sorting in multiple default storage regions
If storage region；
When the current writing region is the default storage region at sequence end in multiple default storage regions, in step
In S402, using the default storage region of sequence first in multiple default storage regions as target writing area.
Specifically, in this specific embodiment, judge that current writing region is write by TS flow data in step S104
Man Shi further judges whether current writing region is to sort in multiple default storage regions according to the sequence of write sequence
The default storage region at end, and determining that current writing region is the default storage at multiple default storage regions sequence ends
When region, using the default storage region of write sequence sequence first in multiple default storage regions as target writing area,
When TS flow data is written, TS data are gradually covered into original TS flow data in the default storage region.It is understood that
It is aforementioned sequence first default storage region be fully written after, then can according to the sequence of write sequence by subsequent TS flow data to write
The default storage region of sequence second is written in the identical mode of default storage region for entering aforementioned sequence first, and so on.It is logical
The embodiment is crossed, the recycling of multiple default storage regions is realized.
After TS flow data is written by above method embodiment, the embodiment of the present invention also provides a kind of TS for reading write-in
The method of flow data.As shown in figure 5, being a kind of flow chart of method for reading data provided in an embodiment of the present invention, this method can
With the following steps are included:
In step S501, the corresponding temporal information of TS flow data to be visited is obtained；
Wherein, all TS flow datas are stored in the identical default storage region of multiple memory spaces, the time letter
Breath includes starting read access time and end read access time；
Specifically, in this step, the corresponding temporal information of TS flow data to be visited is obtained, wherein the temporal information
It can be obtained in such a way that user inputs, it is real that the storing process about TS flow data can refer to Fig. 1-either method shown in fig. 5
Apply example.
In step S502, when being originally written into the time and terminating write-in of the TS flow data in each default storage region is obtained
Between；
Specifically, in this step, obtain the TS flow data in each default storage region is originally written into time and end
Write time.
In step S503, according to the TS flow data in each default storage region when being originally written into the time and terminating to be written
Between, it obtains and presets and deposit containing the beginning read access time and the one or more for terminating the TS flow data between read access time
Storage area domain.
Specifically, in this step, being originally written into for TS flow data in each default storage region is obtained in step S502
After time and end write time, for the TS flow data in any default storage region, when it is originally written into time and end
When thering is at least one to be located at beginning read access time and terminate between read access time in the write time, or when it is originally written into the time
With start read access time it is identical when, or when its terminate the write time with terminate read access time it is identical when, determine it is corresponding preset
Contain the TS flow data started between read access time and end read access time in storage region.Wherein, containing beginning read access time
The number of the default storage region of TS flow data between end read access time is one or more.
For example, the beginning read access time of TS flow data to be visited is 10:30:00, end read access time is 12:30:00,
One shares 5 default storage regions, wherein the time that is originally written into of first default storage region is 09:00:00, terminates to write
The angle of incidence is 09:59:59；The time that is originally written into of second default storage region is 10:00:00, and terminating the write time is 10:
59:59；The time that is originally written into of the default storage region of third is 11:00:00, and the end write time is 11:59:59；4th
The time that is originally written into of a default storage region is 12:00:00, and the end write time is 12:59:59；5th default storage
The time that is originally written into region is 13:00:00, and the end write time is 13:59:59；Then containing beginning read access time and end
The default storage region of TS flow data between read access time be second default storage region, third default storage region and
4th default storage region.
This method provided in an embodiment of the present invention includes starting read access time it is corresponding to obtain TS flow data to be visited
After the temporal information of end read access time, the time is originally written into according to the TS flow data in each default storage region of acquisition
With the end write time, obtain containing the beginning read access time and one for terminating the TS flow data between read access time
Or multiple default storage regions.Program file phase corresponding with needing manually to search TS flow data to be visited in the related technology
Than realizing the quick lookup to the corresponding default storage region of TS flow data to be visited.
As shown in fig. 6, in a kind of specific embodiment of the invention, the method for reading data can also include:
In step s 601, when obtaining the write-in of each default storage region in one or more of default storage regions
Corresponding relationship between long, data block offset, writing data blocks size；
Specifically, in the step, the one or more obtained in obtaining step S503 is preset each preset in storage region and is deposited
The write-in duration in storage area domain, data block offset, the corresponding relationship between writing data blocks size.Wherein, each default storage region
Write-in duration, data block offset, corresponding relationship between writing data blocks size storing process can be found in reality shown in Fig. 2
Example is applied, which is not described herein again.
In step S602, according to the corresponding relationship and each default storage region it is corresponding be originally written into the time and
Terminate the write time, obtains the corresponding data block offset of the beginning read access time and the end read access time is corresponding
Data block offset；
Specifically, according to the corresponding relationship obtained in step S601 and each default storage region is corresponding is originally written into
Time and end write time obtain and start the corresponding data block offset of read access time, and terminate the corresponding number of read access time
It is deviated according to block.For example, starting read access time is 10:30:00, end read access time is 12:30:00, contains beginning read access time
The number of the default storage region of TS flow data between end read access time is three, is originally written into the time and end is write
The angle of incidence is respectively (10:00:00,10:59:59), (11:00:00,11:59:59), (12:00:00,12:59:59), is corresponded to
The data block offset and write-in data volume that every 1s is had recorded in relationship, then it can be seen that, it is inclined to start the corresponding data block of read access time
It moves are as follows: be originally written into the time and terminate the 1500s's for the default storage region that the write time is (10:00:00,10:59:59)
Data block offset；Terminate read access time corresponding data block offset are as follows: be originally written into the time and terminate the write time be (12:00:
00,12:59:59) data block of the 1500s of default storage region deviates.
In step S603, the corresponding data block offset of the beginning read access time and the end read access time pair are read
The TS flow data between data block processed offset answered.
Specifically, in this step, it reads and starts the corresponding data block offset of read access time and terminate read access time to correspond to
Data block offset between TS flow data, i.e., read since starting corresponding data block offset place of read access time corresponding pre-
It is continuous to read to terminating read access time pair then according to the recording time sequence of TS flow data if the TS flow data of storage region
At the data block offset answered.The embodiment realizes the accurate access to TS flow data to be visited automatically, improves user
Experience.
In preceding method embodiment, identical step can be used for reference mutually, and different steps can be freely combined, and not
The scheme formed after same step combination, also belongs to the protection scope of the disclosure.
Relative to above method embodiment, the embodiment of the invention also provides a kind of data transfer apparatus.Reference Fig. 7,
For a kind of structural schematic diagram of data transfer apparatus provided in an embodiment of the present invention, the apparatus may include: TS flow data obtains
Unit 701, the first TS flow data writing unit 703, writes full judging unit 704 and first at current writing region determination unit 702
Target writing area determination unit 705.
TS flow data acquiring unit 701 is for obtaining new TS flow data；
Current writing region determination unit 702 is used to select previous write area from multiple default storage regions according to sequence
For next default storage region in domain as current writing region, the memory space of the multiple default storage region is all the same；
First TS flow data writing unit 703 is used to the TS flow data being written to the current writing region, will open
The time is originally written into as the current writing region at the time of beginning to be written；
It writes full judging unit 704 and is used to judge whether the current writing region to be write completely by the TS flow data；
First object writing area determination unit 705 is used to be write when the current writing region by the TS flow data full
When, it is located at the presently written area using end write time at the time of writing full as the current writing region, and by sequence
The target writing area is written as target writing area, and by subsequent TS flow data in next default storage region after domain
It is interior, the time is originally written into as the target writing area at the time of write-in will be started.
TS fluxion is being written to the identical default memory space of multiple memory spaces in the device provided in an embodiment of the present invention
According to when；Next default storage region of previous writing area is selected to make from multiple default storage regions first, in accordance with sequence
For current writing region；And the TS flow data is written to the current writing region, as institute at the time of starting to be written
That states current writing region is originally written into the time.Further, when the current writing region writes full by the TS flow data,
Using end write time at the time of writing full as the current writing region, and will sequence be located at the current writing region it
Subsequent TS flow data is written in the target writing area as target writing area for next default storage region afterwards, will
The time is originally written into as the target writing area at the time of starting write-in.
When application the embodiment of the present invention scheme when, when TS flow data be written, only when write expire a default memory space
When, just kept away to next default memory space write-in TS flow data so technical solution of the present invention will not generate disk fragments
Having exempted from disk access becomes slowly even to collapse.
As shown in figure 8, the data transfer apparatus can also include: meter in a kind of specific embodiment of the invention
When start unit 801 and recording unit 802.
Timing starts unit 801 for any writing area for the TS flow data, since the TS flow data
Any writing area start time progress timing is written；
Recording unit 802 is used for every prefixed time interval, and record ends the total of any writing area described in current time
Duration is written, the interior data volume being written of data volume, current preset time interval is always written.
As shown in figure 9, the data transfer apparatus can also include: disconnected in a kind of specific embodiment of the invention
It flows judging unit 901, fresh target writing area determination unit 902, restore judging unit 903 and the 2nd TS flow data writing unit
904。
The judging unit 901 that stops is used for when the target writing area does not write full by the TS flow data, described in judgement
Whether TS flow data stops；
Fresh target writing area determination unit 902 is used for when the TS flow data stops, and sequence is located at described
Next default storage region after target writing area is as fresh target writing area；
Restore judging unit 903 for judging whether the TS flow data restores；
2nd TS flow data writing unit 904 is used to write the TS flow data after recovery when the TS flow data restores
Enter to the fresh target writing area.
As shown in Figure 10, in a kind of specific embodiment of the invention, the data transfer apparatus can also include: area
Domain judging unit 1001 and the second target writing area determination unit 1002.
Region decision unit 1001 is for judging whether the current writing region is to sort in multiple default storage regions
The default storage region at end；
Second target writing area determination unit 1002 is used to when the current writing region be multiple default storage regions
When the default storage region at middle sequence end, using the default storage region of sequence first in multiple default storage regions as target
Writing area.
The embodiment of the invention also provides a kind of reading data devices.It as shown in figure 11, is provided in an embodiment of the present invention
A kind of structural schematic diagram of reading data device, the apparatus may include: temporal information acquiring unit 1101, write time obtain
Unit 1102 and storage region acquiring unit 1103.
Temporal information acquiring unit 1101 is for obtaining the corresponding temporal information of TS flow data to be visited；Wherein, own
TS flow data be stored in the identical default storage region of multiple memory spaces, the temporal information include start read access time
With end read access time；
What write time acquiring unit 1102 was used to obtain TS flow data in each default storage region is originally written into the time
With the end write time；
Storage region acquiring unit 1103 is used to be originally written into the time according to the TS flow data in each default storage region
With the end write time, obtain containing the beginning read access time and one for terminating the TS flow data between read access time
Or multiple default storage regions.
The device provided in an embodiment of the present invention includes starting read access time it is corresponding to obtain TS flow data to be visited
After the temporal information of end read access time, the time is originally written into according to the TS flow data in each default storage region of acquisition
With the end write time, obtain containing the beginning read access time and one for terminating the TS flow data between read access time
Or multiple default storage regions.Program file phase corresponding with needing manually to search TS flow data to be visited in the related technology
Than realizing the quick lookup to the corresponding default storage region of TS flow data to be visited.
As shown in figure 12, in a kind of specific embodiment of the invention, the reading data device can also include: pair
Answer Relation acquisition unit 1201, offset acquiring unit 1202 and reading unit 1203.
Corresponding relationship acquiring unit 1201 is for obtaining each default memory block in one or more of default storage regions
The write-in duration in domain, data block offset, the corresponding relationship between writing data blocks size；
Offset acquiring unit 1202 is used for according to the corresponding relationship and each default storage region is corresponding is originally written into
Time and end write time obtain the corresponding data block offset of the beginning read access time and the end read access time
Corresponding data block offset；
When reading unit 1203 is for reading the corresponding data block offset of the beginning read access time and end reading
Between TS flow data between corresponding data block processed offset.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.And it is understood that in above-described embodiment
It can be freely combined between each module of device, by the scheme after different block combiners, also belong to the protection scope of the disclosure.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.
It is required that those skilled in the art can be understood that the technology in the embodiment of the present invention can add by software
The mode of general hardware platform realize.Based on this understanding, the technical solution in the embodiment of the present invention substantially or
Say that the part that contributes to existing technology can be embodied in the form of software products, which can deposit
Storage is in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that computer equipment (can be with
It is personal computer, server or the network equipment etc.) execute certain part institutes of each embodiment of the present invention or embodiment
The method stated.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within made modifications, equivalent substitutions and improvements etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of method for writing data, which is characterized in that the described method includes:
Obtain new TS flow data；
Select from multiple default storage regions next default storage region of previous writing area as currently writing according to sequence
Enter region, the memory space of the multiple default storage region is all the same；
The TS flow data is written to the current writing region, as the current writing region at the time of starting to be written
Be originally written into the time；
It is full to judge whether the current writing region is write by the TS flow data；
When the current writing region writes full by the TS flow data, using at the time of writing full as the current writing region
Terminate the write time, and using next default storage region of the sequence after the current writing region as target write area
Domain, and subsequent TS flow data is written in the target writing area, as the target write area at the time of starting to be written
Domain is originally written into the time；
For any writing area of the TS flow data, any writing area is written since the TS flow data
Moment carries out timing；
Every prefixed time interval, record ends total write-in duration of any writing area described in current time, data is always written
The data volume being written in amount, current preset time interval.
2. the method according to claim 1, wherein the method also includes:
When the target writing area does not write full by the TS flow data, judge whether the TS flow data stops；
When the TS flow data stops, by next default storage region of the sequence after the target writing area
As fresh target writing area；
Judge whether the TS flow data restores；
When the TS flow data restores, the TS flow data after recovery is written to the fresh target writing area.
3. the method according to claim 1, wherein the method also includes:
Judge the current writing region whether be in multiple default storage regions sort end default storage region；
It, will be multiple default when the current writing region is the default storage region at sequence end in multiple default storage regions
The default storage region of sequence first is as target writing area in storage region.
4. a kind of method for reading data, the data -3 any the method write-in according to claim 1, which is characterized in that institute
The method of stating includes:
Obtain the corresponding temporal information of TS flow data to be visited；Wherein, all TS flow datas are stored in multiple memory spaces
In identical default storage region, the temporal information includes starting read access time and end read access time；
Obtain the TS flow data in each default storage region is originally written into time and end write time；
It is originally written into time and end write time according to the TS flow data in each default storage region, obtains and is opened containing described
Beginning read access time and the one or more for terminating the TS flow data between read access time preset storage region；
Obtain the write-in duration of each default storage region in one or more of default storage regions, data block offset, write-in
Corresponding relationship between data block size；
It is originally written into time and end write time according to the corresponding relationship and each default storage region are corresponding, is obtained
The corresponding data block offset of beginning read access time and the corresponding data block offset of the end read access time；
It reads the corresponding data block offset of beginning read access time data block corresponding with the end read access time and deviates it
Between TS flow data.
5. a kind of data transfer apparatus, which is characterized in that described device includes:
TS flow data acquiring unit, for obtaining new TS flow data；
Current writing region determination unit, for being selected under previous writing area from multiple default storage regions according to sequence
For one default storage region as current writing region, the memory space of the multiple default storage region is all the same；
First TS flow data writing unit will start to be written for the TS flow data to be written to the current writing region
At the time of as the current writing region be originally written into the time；
Full judging unit is write, is expired for judging whether the current writing region is write by the TS flow data；
First object writing area determination unit, for will write when the current writing region writes full by the TS flow data
End write time at the time of full as the current writing region, and sequence is located at after the current writing region
Next default storage region is written in the target writing area as target writing area, and by subsequent TS flow data, will open
The time is originally written into as the target writing area at the time of beginning to be written；
Timing starts unit, and for any writing area for the TS flow data, institute is written since the TS flow data
State any writing area start time progress timing；
Recording unit is used for every prefixed time interval, when record ends total write-in of any writing area described in current time
Data volume long, that the interior write-in of data volume, current preset time interval is always written.
6. device according to claim 5, which is characterized in that described device further include:
Stop judging unit, for judging the TS fluxion when the target writing area does not write full by the TS flow data
According to whether stopping；
Fresh target writing area determination unit, for sequence being located at the target and is write when the TS flow data stopping
Enter next default storage region after region as fresh target writing area；
Restore judging unit, for judging whether the TS flow data restores；
2nd TS flow data writing unit, for when the TS flow data restores, the TS flow data after recovery to be written to institute
State fresh target writing area.
7. device according to claim 5, which is characterized in that described device further include:
Region decision unit, for judging whether the current writing region is the pre- of end of sorting in multiple default storage regions
If storage region；
Second target writing area determination unit, for being end of sorting in multiple default storage regions when the current writing region
When the default storage region of tail, using the default storage region of sequence first in multiple default storage regions as target write area
Domain.
8. a kind of reading data device, the data are written according to any device of claim 5-7, which is characterized in that
Described device includes:
Temporal information acquiring unit, for obtaining the corresponding temporal information of TS flow data to be visited；Wherein, all TS fluxions
According to being stored in the identical default storage region of multiple memory spaces, the temporal information includes starting read access time and terminating to read
Take the time；
Write time acquiring unit, for obtain the TS flow data in each default storage region be originally written into the time and end is write
The angle of incidence；
Storage region acquiring unit, for according to the TS flow data in each default storage region be originally written into the time and end is write
The angle of incidence obtains pre- containing the beginning read access time and the one or more for terminating the TS flow data between read access time
If storage region；
Corresponding relationship acquiring unit, for obtaining the write-in of each default storage region in one or more of default storage regions
Duration, data block offset, the corresponding relationship between writing data blocks size；
Deviate acquiring unit, for according to the corresponding relationship and each default storage region it is corresponding be originally written into the time and
Terminate the write time, obtains the corresponding data block offset of the beginning read access time and the end read access time is corresponding
Data block offset；
Reading unit, it is corresponding with the end read access time for reading the corresponding data block offset of the beginning read access time
TS flow data between data block offset.
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| CN1567476A (en) * | 2003-06-24 | 2005-01-19 | 群联电子股份有限公司 | High speed big block data writing method for flash memory |
| CN1750164A (en) * | 2005-07-20 | 2006-03-22 | 杭州海康威视数字技术有限公司 | Digital hard disc recorder file managing method for preventing file fragment production |
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| CN1567476A (en) * | 2003-06-24 | 2005-01-19 | 群联电子股份有限公司 | High speed big block data writing method for flash memory |
| CN1750164A (en) * | 2005-07-20 | 2006-03-22 | 杭州海康威视数字技术有限公司 | Digital hard disc recorder file managing method for preventing file fragment production |
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